It’s not really going to be about latitude here. Our issue is how far west this storm comes, allowing an easterly wind to torch upper levels. You can be at the PA/MD border north of Baltimore or up in Philly or New York City and still see the same result as places further south than you along the same longitude.
There is going to be an east to west snow gradient. Not the typical “as long as you’re further north” deal we have around these parts. Could very well see places like Manchester get 2-4” before a slopfest occurs as Emmitsburg or Hancock gets 6-12+, despite having a similar latitude. Could also see DC with more snow than Baltimore because of this. If this low indeed tracks over Baltimore or west, York & Lancaster PA will meet a similar fate as Baltimore.